Photovoltaic inverter network transmitter

What communication technologies do solar inverters use?

This discussion explores the key communication technologies used by inverters, including wired and wireless systems, power line communication (PLC), standard protocols, and the integration of Internet of Things (IoT). Many solar inverters are equipped with wired communications such as RS485, Ethernet, or CAN bus.

How do inverters communicate?

Inverters communicate through a variety of methods to optimize energy management across different settings. This discussion explores the key communication technologies used by inverters, including wired and wireless systems, power line communication (PLC), standard protocols, and the integration of Internet of Things (IoT).

Which power line communication options are implemented in different solar installations?

Figure 1 shows typical power line communication options implemented in different solar installations. These installations can be divided into communication on DC lines (red) and communication on AC lines (blue).

Why do inverters use Ethernet?

Ethernet connections facilitate faster data speeds and are commonly used to integrate inverters with building management systems and other IP-based networks. The CAN bus is robust in environments with a lot of electromagnetic interference, ensuring consistent data flow between devices in harsher conditions.

Why do inverters use Wi-Fi?

Wi-Fi is widely used due to its ability to connect inverters to the internet seamlessly, enabling system integrators and homeowners to monitor system performance in real time via cloud services.

Why do inverters use Bluetooth?

Bluetooth provides a convenient way for local device-to-device communication, useful during initial setup and local troubleshooting without the need for internet connectivity. For areas lacking reliable Wi-Fi, cellular connections offer a broader coverage, allowing inverters to transmit data to central servers even from remote locations.